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lead diameter mechanism composition variations production date origin |
2 mm pushbutton spring clutch plastic barrel, aluminum grip, nickel plated brass fittings barrel color: black, blue, green, red, yellow 1990s Italy |
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| see also |
Tacro 4435 "Professional 5" drafting leadholder Koh-I-Noor 5611 C drafting leadholder |
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lead diameter mechanism composition variations production date origin |
2 mm pushbutton spring clutch plastic barrel, metal clutch and pushbutton (probably) barrel color: black, ? circa 1950s Germany |
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lead diameter mechanism composition variations production date origin |
2 mm pushbutton spring clutch plastic barrel, aluminum grip, nickel plated brass fittings barrel color: black, blue, green, red, yellow 1990s Italy |
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| special features | sliding lead degree indicator | ||
| see also | Tacro 4434 "Professional 5" drafting leadholder |
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| courtesy Laurie Schmidtke collection | |
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lead diameter mechanism composition variations production date origin |
2 mm pushbutton spring clutch plastic barrel, metal clutch unknown (1970s) Germany |
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lead diameter mechanism composition variations production date origin |
2 mm pushbutton spring clutch plastic barrel, metal clutch and pushbutton barrel color: black, blue, green, red, yellow 1990s Italy |
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| see also |
Alvin "Scott" B/2 C-Thru 3500 |
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lead diameter mechanism composition variations production date origin |
1.18 mm slide actuated spring clutch plastic barrel and knob, metal clutch and compass leg none 1950s Germany |
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left Tacombi packaging. below The pencil in compass configuration. The small knob on the left side of the barrel is the sliding actuator for the clutch. The top knob turns to clamp the compass leg into place. |
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| original content, images, layout and design © 2001 to 2010 Dennis B. Smith | more info... | ▲ top | ||
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